BASIC BIOLOGY & METHODS of SCIENCE

Introduces fundamental biological mechan-
isms that are basic to an understanding of
how organisms live and function. Presents
some of the fundamental intellectual, phys-
ical & conceptual tools of scientific study.

GENETIC STUDIES IN PLANTS
Elaborately detailed presentations covering a wide range of genetic studies in corn, onion and mold. Provides a solid basis. 7 pgms, 140 slides, texts. 50% DISCOUNT!
EP #607X SLIDES
$149.95

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SAVE OVER $147.00 ON 7 SLIDE SET BUNDLE ORDER EP #607X.........$149.95
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GROUP REVIEW:
"... high-quality, detailed sets [#603, 604, 605, 606, 607, 608, 609 and 610].... All
the information is excellent and the slides are illuminating...these are useful studies of
genetics for advanced high school and college biology classes." Booklist.
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CYTOGENETICS IN CORN--CHROMOSOME ABERRATIONS Slides order #607 .......$42.50

Corn has proven to be a highly useful organism for cytogenetic studies. Its
chromosomes can be discerned well at most stages of meiosis. These high contrast
black and white photomicrographs detail the consequences of reciprocal translocations,
multiple translocations and inversions in the chromosomes at various meiotic stages.
Lagging chromosomes and B-type chromosomes are also illustrated. Many split images
show diagrammatic interpretations along with the actual photograph. 20 slides and guide.
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THE LIFE CYCLE OF CORN AND MUTANTS OF THE REPRO-
DUCTIVE STRUCTURES Slides order #608 ........$42.50

The life cycle of one of our most useful and famous plants. Illustrates the seed
and its parts, vegetative stages, reproductive structures, and interesting mutations of
male and female reproductive organs. 20 slides and guide.
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PLANT MUTANTS OF CORN Slides order #605 ......$42.50

From a genetic standpoint, Zea mays (maize or corn) is one of the best known
angiosperm plants. The use of variant seedlings in genetic analysis has been especially
convenient and a fairly large number are known. Many variants that express their
phenotypic differences as mature plants are also known. This set displays 28 of these
mutants and describes their genetics. 20 slides and guide.
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KERNEL MUTANTS OF CORN Slides order #606 .......$42.50

In addition to its tremendous agronomic importance, corn has provided a very
good system for genetic investigation. This is partly due to the large number of mutant
expressions that are known in the pericarp, aleurone and the inner endosperm of the
kernel. A very representative group of these conspicuous variants are illustrated in this
set, and their genetics described in each case. 20 slides and guide.
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MEIOSIS IN MAIZE Slides order #604 .......$42.50

High contrast black and white photomicrographs that detail the movement,
behavior and appearance of the chromosomes as they pass through meiotic cell division
in the anthers of maize (corn). Many split images are provided which show diagrammatic
interpretations along with the actual photomicrographs. 2O frames and guide.
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MITOSIS IN ALLIUM CEPA Slides order #603 ......$42.50

High contrast black and white photomicrographs the movement, behavior and
appearance of the chromosomes as they pass through mitotic cell division in the root tip
cells of onions. 2O slides and guide.
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LIFE CYCLE OF NEUROSPORA CRASSA--THE COMMON PINK BREAD MOLD
Slides order #609 ......$42.50

Neurospora crassa has been a uniquely suitable organism for genetic and
botanical investigation. Its life cycle, both asexual and sexual, is carefully illustrated and
described. The set consists of both macrophotographs showing vegetative stages and
structures, and high power photomicrographs showing the nuclear events involved in
sexual reproduction and meiosis. 20 slides and guide.
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~0592-041~ Specialized cells from meristematic tissue of an onion. photo by Educational
Images Ltd.

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